Animal photos of the week: 20 September 2013

A loving pair of otters snooze on hand in hand - to stop them floating apart in their slumber. The male and female, named Nellie and Abra, were cuddling up on their waterbed in Point Defiance Zoo and Aquarium in Tacoma, Washington, after a playful morning together. Coated in the densest fur in the animal kingdom - with up to a million hairs per square inch - they were in no danger of catching a chill.Picture: John Vargas / Barcroft Media